Taco Bell Lettuce Confirmed as Cyclospora Source in 5 States

Federal health officials have confirmed that shredded iceberg lettuce from Mexico served at Taco Bell restaurants in five states is the source of a massive cyclospora outbreak that has sickened thousands of Americans. The Centers for Disease Control and Prevention and the Food and Drug Administration announced the findings on July 16-17, 2026, linking the contaminated lettuce to Taco Bell locations in Indiana, Kentucky, Michigan, Ohio, and West Virginia.

The Outbreak

As of July 18, the CDC has confirmed 1,644 illnesses linked to Taco Bell exposure, with 94 hospitalizations and no deaths reported. However, state-level data paints a far more alarming picture. Michigan alone has reported 5,002 cases and 102 hospitalizations — a staggering 100-fold increase over the typical 40 to 50 seasonal cases the state usually sees by this time of year. Other affected states include Indiana (320+ cases), Kentucky (190+), Ohio (1,240+), and West Virginia (139 cases).

Illness onset dates range from May 13 to July 13, 2026, indicating the outbreak has been spreading for over two months. The CDC is also investigating more than 5,100 additional cyclospora illnesses across 34 states, some of which may be linked to separate contamination sources.

Source and Recall

The FDA’s traceback investigation identified Taylor Farms de Mexico of Guanajuato, Mexico, as the single supplier of the contaminated iceberg lettuce. On July 17, Taylor Farms de Mexico announced a voluntary recall of all iceberg lettuce sourced from central Mexico. The recall includes Marketside-brand products sold at Walmart stores in 15 states and food service products distributed to 27 states.

On July 18, the FDA confirmed that a sample of shredded iceberg lettuce from Taylor Farms de Mexico tested positive for Cyclospora during targeted import surveillance. Taylor Fresh Foods, based in Salinas, California, stated that the affected farm represents “less than 1% of the U.S.’s iceberg lettuce supply.”

Industry Response

Taco Bell announced it has “taken immediate action to voluntarily remove potentially impacted lettuce from a supplier in select states” and is removing the ingredient from its supply chain nationwide, replacing it within 24 hours in affected regions. The company has committed to permanently stopping use of lettuce from the identified supplier.

In a statement, Taylor Fresh Foods expressed concern for those affected: “As a family owned and operated company, we are deeply concerned for those who became ill, their families, and the many Americans whose trust in the safety of their fresh produce has been shaken.”

What Is Cyclospora?

Cyclospora cayetanensis is a microscopic parasite that causes cyclosporiasis, an intestinal illness characterized by watery diarrhea, loss of appetite, stomach cramps, nausea, and fatigue. Symptoms typically appear 2 to 14 days after exposure and can last for weeks or months if untreated. The parasite spreads through food or water contaminated with fecal matter, often via irrigation water used on fresh produce.

The current outbreak has far surpassed the previous record of approximately 4,700 U.S. cyclosporiasis cases reported in 2019. Experts attribute the rising trend to climate change, better detection methods, and historical underreporting.

Data Gaps and Concerns

A significant challenge in tracking this outbreak has been the CDC’s decision to stop tracking cyclospora infections and seven other foodborne pathogens as of July 1, 2025. This has caused federal case counts to lag significantly behind state-reported data, hampering real-time outbreak response. State health departments have become the primary source of case information, but reporting standards vary across states.

Safety Recommendations

The CDC advises consumers who may have purchased recalled lettuce to discard it immediately and not consume it. Dr. Gwen Biggerstaff of the CDC recommends thoroughly washing hands and fresh produce under running water before eating, noting that cooking food to 158°F (70°C) or higher kills the parasite. Anyone experiencing symptoms should contact their healthcare provider and request specific testing for cyclospora, as routine stool tests often do not detect the parasite.

What’s Next

The FDA and CDC continue their investigation, warning that additional brands, restaurants, or retailers may be linked to the contaminated lettuce supply. The recalled products have a shelf life extending to August 3, 2026, meaning consumers may still have affected products in their homes. The outbreak has reignited calls for stronger FDA import surveillance, mandatory testing requirements, and restoration of CDC pathogen tracking programs.